Figure 4.7 Physical Sector Servo Configuration On Disk Surface - Fujitsu MHT2080AH - 80GB 5400 RPM PATA Hard Drive Product Manual

CYLn + 1
W/R Recovery
Servo Mark
Gray Code
Erase Servo A
Servo B Erase
Servo C
Erase

Figure 4.7 Physical sector servo configuration on disk surface

C141-E195-02EN
IGB
Data area
expand
CYLn CYLn – 1 (n: even number)
W/R Recovery W/R Recovery
Servo Mark Servo Mark
Gray Code Gray Code
Erase
Servo B
Erase Servo C
Servo D Erase
PAD
Servo frame
(124 servo frames per revolution)
OGB
Servo A
Circumference
Erase
Direction
Erase: DC erase
4.7 Servo Control
Diameter
direction
area
4-15